Bell 407

Service difficulty reports · 6,813

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '407'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR HEEA0014804Cooler · leakingOIL COOLER LEAKING.Jun 17, 1998 · N447PH · Bell 407 · Engine Oil CoolerSDR HEEA0014803Float Bag · leakingFLOAT BAG FAILED 6 MONTH INSPECTION. LEAK AT FORWARD END AT BOTTOM.Jun 17, 1998 · N407MM · Bell 407 · Emergency Flotation SectionSDR HEEA0014802Indicator · failedINDICATOR GOES THROUGH TEST OK THEN TO ZERO BUT WILL NOT GO UP.Jun 17, 1998 · N408PH · Bell 407 · Engine RPM Indicating SystemSDR HEEA0014800Indicator · failedINDICATION SHOWED INTERMITTENT INDICATIONS DURING FLIGHT.Jun 17, 1998 · N141MA · Bell 407 · Fuel Quantity IndicatorSDR HEEA0014799Indicator · inoperativeENGINE OIL PRESSURE LCD NOT ILLUMINATING OR TESTING.Jun 17, 1998 · N57416 · Bell 407 · Engine Oil PressureSDR HEEA0014798Indicator · inoperativeOIL TEMPERATURE SIDE OF INDICATOR INOPERATIVE.Jun 17, 1998 · N407PH · Bell 407 · Engine Oil TemperatureSDR HEEA0014797Power Supply · inoperativeANTI-COLLISION LIGHT WILL NOT FLASH.Jun 17, 1998 · N407PH · Bell 407 · Exterior LightingSDR HEEA0014796Fusible Plug · failedPLUG BLEW OUT RELEASING FLOAT BOTTLE PRESSURE.Jun 17, 1998 · N403PH · Bell 407 · Emergency Flotation SectionSDR HEEA0014795Switch · failedMAIN ROTOR GEARBOX INDICATOR LIGHT FLICKERS.Jun 17, 1998 · N467PH · Bell 407 · Main Rotor GearboxSDR HEEA0014792Adapter · inoperativeTAIL ROTOR SPLINE'S ADAPTER IS INOPERATIVE.Jun 17, 1998 · N407PH · Bell 407 · Tail Rotor GearboxSDR HEEA0014786Brushes · wornAIRCRAFT WILL NOT START. FOUND STARTER/GENERATOR BRUSHES EXCESSIVELY WORN AND HANGING UP. REPLACED BRUSHES.Jun 17, 1998 · N406PH · Bell 407 · Starter-GeneratorSDR HEEA0014785Brushes · burnedAIRCRAFT WOULD NOT START. FOUND STARTER/GENERATOR BRUSHES HANGING UP AND ONE BRUSH BOX WAS BURNT.Jun 11, 1998 · N447PH · Bell 407 · Starter-GeneratorSDR HEEA0014683Gauge · failedGAUGE ON RIGHT FLOAT BOTTLE READS INACCURATE. REPLACED WITH SERVICEABLE GAUGE.Jun 10, 1998 · N141MA · Bell 407 · Emergency Flotation SectionSDR HEEA0014682Gauge · contaminatedWATER IN FLOAT BOTTLE PRESSURE GAUGE. REPLACED WITH SERVICEABLE GAUGE.Jun 10, 1998 · N437PH · Bell 407 · Emergency Flotation SectionSDR 98ZZZX2885Boot · leakingHOLE IN BOOT ALLOWING OIL AND GREASE TO FLOW OUT. SEALS 2 EACH B56-40-2 AND ONE EACH 26001-7023 WERE REPLACED DUE TO LEAKING.Jun 10, 1998 · N407PR · Bell 407 · Tail Rotor GearboxSDR 98ZZZX2884Caliper · leakingROTOR BRAKE LEAKING. NO TECHNICAL DATA TO REPAIR.Jun 10, 1998 · N407PR · Bell 407 · Main Rotor BrakeSDR HEEA0014651Encoder · inoperativeENCODER NOT REPORTING PROPERLY.Jun 8, 1998 · N407PH · Bell 407 · Altimeter, Barometric/EncoderSDR 98ZZZX2536Bearing · failedENGINE REMOVED FOR MAKING METAL. UPON INSPECTION BEARINGS FOUND BAD NR 5 BEARING. SOURCE OF METAL WAS CAUSED BY GEARBOX TORQUE METER AND PINION GEAR DETERIORATING.Jun 8, 1998 · N567AL · Bell 407 · Turbine SectionSDR 98ZZZX2534Pinion Gear · galledUPON DISASSEMBLY OF GEARBOX AND INSPECTION OF PARTS DUE TO METAL, FOUND PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH. POSSIBLY DUE TO IMPROPER MESHING OF GEARS. SECONDARY DAMAGE: T/M GEAR P/N 6893673 S/N NN143321. TT: 15,65.3 HOURS. SPALLING ON GEAR TJun 8, 1998 · N427AL · Bell 407 · Turbine Engine Reduction GearSDR 98ZZZX2533Bearing · galledENGINE WAS REMOVED FOR MAKING METAL. INSPECTED AND FOUND GALLING ON NR 5 BEARING AND METAL SLIVERS UNDER NR 5 BEARING NUT AND CUP WASHER. ALSO FOUND NR 5 BEARING INTERNAL OUTER RACE DETERIORATING.Jun 8, 1998 · N407AL · Bell 407 · Turbine SectionSDR 98ZZZX2532Rotating Seal · making metalENGINE WAS REMOVED FOR MAKING METAL. REMOVED NR 5 BEARING AND FOUND METAL IN BEARING CAVITY. REMOVED NR 5 BEARING FOR INSPECTION AND FOUND METAL SLIVERS UNDER NR 5 BEARING NUT AND CAP LOCK WASHER.Jun 8, 1998 · N477AL · Bell 407 · Turbine SectionSDR 98ZZZX2531Pinion Gear · galledUPON DISASSEMBLY AND INSPECTION OF PARTS, FOUND EXCESSIVE GALLING ON PINION GEAR AND SPALLING ON T/M GEAR. PINION GEAR HAD EXCESSIVE GALLING ON GEAR TEETH. POSSIBLY DUE TO IMPROPER MESHING OF GEARS. SECONDARY DAMAGE. T/M GEAR PN 689367. SN NN144843, TT: Jun 8, 1998 · N477AL · Bell 407 · Turbine Engine Reduction GearSDR 98ZZZX3347Disk · crackedDURING PHASE INSPECTION AND C/W AD 97-24-17, 25-HOUR INSPECTION FOUND CRACKED DISK (9TH) FACING AFT.Jun 6, 1998 · N437AL · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014599Indicator · inoperativeRADIO ALTIMETER TEST FUNCTION INOPERATIVE.Jun 4, 1998 · N405PH · Bell 407 · Ground Proximity SystemSDR HEEA0014477Hose · leakingENGINE OIL HOSE LEAKING.Jun 2, 1998 · N407MM · Bell 407 · Engine Oil Distribution (Airframe Furnished)SDR HEEA0014476Lens · crackedTORQUEMETER LENS CRACKED.Jun 2, 1998 · N408PH · Bell 407 · Engine BMEP/Torque IndicatingSDR HEEA0014441Shaft · damagedM/R GEARBOX HAS GROOVE CUT IN SHAFT BEYOND LIMITS.Jun 1, 1998 · N427PH · Bell 407 · Main Rotor GearboxSDR HEEA0014440Bearing · wornT/R BEARINGS WORN.Jun 1, 1998 · N407PH · Bell 407 · Tail Rotor Control SystemSDR HEEA0014439Housing · wornGROOVES WORN INTO T/R FILTER HOUSING.Jun 1, 1998 · N404PH · Bell 407 · Tail Rotor Drive SystemSDR HEEA0014438Float Cover · wornFLOAT COVER WORN.Jun 1, 1998 · N417PH · Bell 407 · Emergency Flotation SectionSDR HEEA0014437Seal · leakingT/R GEARBOX SEAL LEAKING.Jun 1, 1998 · N405PH · Bell 407 · Tail Rotor GearboxSDR HEEA0014434Hose Assembly · leakingHOSE LEAKING.Jun 1, 1998 · N408PH · Bell 407 · Engine Oil Distribution (Airframe Furnished)SDR HEEA0014433Disk Coupling · crackedDISK COUPLING CRACKED.Jun 1, 1998 · N57416 · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014432Pressure Switch · malfunctionedBOOST PUMP SWITCH HAS INTERMITTENT CONTACT PROBLEMS.Jun 1, 1998 · N427PH · Bell 407 · Fuel Boost PumpSDR HEEA0014431Disk Coupling · crackedCRACKED DISC ON T/R DISC COUPLING.Jun 1, 1998 · N467PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014429Relay · failedMLG RELAY STUCK CLOSED.Jun 1, 1998 · N467PH · Bell 407 · Main Landing GearSDR HEEA0014428Disk Coupling · crackedWHILE COMPLYING WITH AD 97-24-17, DISCOVERED DISC PACK COUPLING DIRECTLY BEHIND OIL COOLER HAD A CRACKED DISC.Jun 1, 1998 · N403PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014427Bearings · wornBEARINGS WORN IN BIPOD MOUNT.Jun 1, 1998 · N407MM · Bell 407 · Engine Mount SectionSDR HEEA0014426Indicator · faultyBATTERY INDICATOR GAUGE HAS INOPERATIVE LCD SEGMENT ON THE Y10 VOLT NUMBER, LT LOWER VERTICAL LCD SEGMENT.Jun 1, 1998 · N467PH · Bell 407 · DC Indicating SystemSDR HEEA0014425Disk Coupling · excessive gapEXCESSIVE GAP BETWEEN DISC.Jun 1, 1998 · N407PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014424Bearing · wornWORN BEARINGS. SERIAL NUMBERS REMOVED ARE NHFS-2193 AND NHFS-2195.Jun 1, 1998 · N141MA · Bell 407 · Tail Rotor Control SystemSDR HEEA0014423Disk Coupling · crackedNR 1 LAMINATE CRACKED.Jun 1, 1998 · N405PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014422Disk Coupling · crackedFOUND CRACKED T/R DRIVE SHAFT DISC PACK COUPLING.Jun 1, 1998 · N403PH · Bell 407 · Tail Rotor Drive ShaftSDR HEEA0014421Sensor · failedSENSOR CAUSING HIGH OIL TEMP READING.Jun 1, 1998 · N457PH · Bell 407 · Engine Oil TemperatureSDR HEEA0014420Switch · intermittentSWITCH WITH INTERMITTENT OPERATION CAUSES CAUTION PANEL TO COME ON DIM, THEN BRIGHT.Jun 1, 1998 · N407PH · Bell 407 · Landing Gear Position and WarningSDR HEEA0014419Servo · chatteringSERVO CHATTERING INTERMITTENTLY CAUSING HIGH FREQUENCY.Jun 1, 1998 · N447PH · Bell 407 · Rotorcraft Servo SystemSDR HEEA0014418Rotor Brake · wornROTOR BRAKE WEAK AND WORN.Jun 1, 1998 · N405PH · Bell 407 · Main Rotor BrakeSDR HEEA0014416Beam Assembly · wornM/R BEAM WORN SPOT FROM HYDRAULIC HOSE.Jun 1, 1998 · N447PH · Bell 407 · Main Rotor Drive SystemSDR HEEA0014414Freewheel Unit · leakingLEAKING OIL FROM MAG SEAL FORWARD PAD SEAL.Jun 1, 1998 · N405PH · Bell 407 · Engine/Transmission CouplingSDR 98ZZZX3088Support · missingDURING POST-FLIGHT INSPECTION, THE SPOILER TO THE LT SIDE OF THE HORIZONTAL STABILIZER WAS FOUND MISSING AND HAD STRUCK ONE TAIL ROTOR BLADE CAUSING MINOR DAMAGE. THERE WAS NO FEED BACK IN THE CONTROLS DURING FLIGHT THAT WOULD HAVE WARNED OF ANY IMPACT TO THEMay 30, 1998 · N407AL · Bell 407 · Horizontal Stabilizer Structure
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